# SDR CALA2026091119373

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2026
- Submitted: September 11, 2026
- Operation: Air carrier
- Aircraft: [N443UA](https://openairdocs.org/aircraft/N443UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 820
- Aircraft time: 86,031 hours, 35,180 cycles
- Engine: Iae V2527A5
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Sdac
- Part number: 350E5500206
- Part serial: 5722
- Condition: Faulted
- Part time: 23,903 hours, 11,773 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2026091119373

## Discrepancy

BLUE/YELLOW HYD PRESSURE DOUBLE AMBER XS ONSD PAGE. FLT CTL SD PAGE SHOWING ONLY G SYS.   ISOLATED SDAC 2, CIRCUIT BREAKERS PULLE D FOR TROUBLESHOOTING, ALL HYD INDS RETURNED TO NORMAL. REPLACED BOTH SDACS & RAN GROUND SCANNING OF THE CENTRAL WARNING SYS IAW AMM 31-50-00.  NO DEFECTS NOTED.  ALL HYD INDICATIONS FUNCTIONING NORMALLY.

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